The report below shows ASNs assigned to United States, ranked by the total number of IP addresses currently active on each network. Click on the ASN for full IP address information, whois details and more. You can also view our hosting report to see the networks ranked by how many domain names they host.

ASN Name Num IPs
AS7018 AT&T Services, Inc. 98,949,376
AS721 DoD Network Information Center 73,645,056
AS7922 Comcast Cable Communications, LLC 71,325,440
AS3549 Level 3 Parent, LLC 44,380,928
AS701 MCI Communications Services, Inc. d/b/a Verizon Business 42,283,264
AS3356 Level 3 Parent, LLC 39,369,984
AS8075 Microsoft Corporation 37,964,544
AS16509 Amazon.com, Inc. 37,115,136
AS6167 Cellco Partnership DBA Verizon Wireless 29,631,744
AS174 Cogent Communications 28,121,600
AS209 CenturyLink Communications, LLC 20,732,416
AS1239 Sprint 17,408,512
AS714 Apple Inc. 16,816,384
AS14618 Amazon.com, Inc. 16,281,600
AS7029 Windstream Communications LLC 13,012,224
AS7377 University of California, San Diego 12,855,552
AS21928 T-Mobile USA, Inc. 12,670,976
AS22773 Cox Communications Inc. 12,264,448
AS5650 Frontier Communications of America, Inc. 12,220,416
AS20115 Charter Communications 11,873,024
AS4249 Eli Lilly and Company 11,534,592
AS10507 Sprint Personal Communications Systems 10,301,184
AS15169 Google LLC 10,289,152
AS45102 Alibaba (US) Technology Co., Ltd. 10,207,488
AS22394 Cellco Partnership DBA Verizon Wireless 9,832,448
AS3561 CenturyLink Communications, LLC 8,973,824
AS6389 AT&T Corp. 8,201,728
AS10796 Charter Communications Inc 7,973,632
AS2914 NTT America, Inc. 6,922,752
AS16625 Akamai Technologies, Inc. 6,764,032
AS2828 MCI Communications Services, Inc. d/b/a Verizon Business 6,750,208
AS20001 Charter Communications Inc 6,702,080
AS385 Air Force Systems Networking 6,270,720
AS33363 Charter Communications, Inc 6,184,704
AS702 MCI Communications Services, Inc. d/b/a Verizon Business 5,999,360
AS237 Merit Network Inc. 5,734,656
AS36351 SoftLayer Technologies Inc. 5,249,024
AS11427 Charter Communications Inc 5,242,624
AS6128 Cablevision Systems Corp. 5,134,848
AS306 DoD Network Information Center 4,918,272
AS11351 Charter Communications Inc 4,870,912
AS20057 AT&T Mobility LLC 4,734,976
AS11426 Charter Communications Inc 4,672,512
AS10455 Alcatel-Lucent 4,591,104
AS10310 Oath Holdings Inc. 4,383,488
AS71 Hewlett-Packard Company 3,988,480
AS35916 MULTACOM CORPORATION 3,441,920
AS14962 NCR Corporation 3,344,640
AS12271 Charter Communications Inc 3,252,224
AS11003 The Procter and Gamble Company 3,105,280
AS4152 USDA 3,080,192
AS668 DoD Network Information Center 2,868,736
AS19108 Suddenlink Communications 2,862,848
AS1761 General Services Commission 2,689,280
AS81 MCNC 2,512,640
AS14061 DigitalOcean, LLC 2,351,872
AS7132 AT&T Corp. 2,252,032
AS16591 Google Fiber Inc. 2,244,608
AS3 Massachusetts Institute of Technology 2,170,624
AS7843 Charter Communications Inc 2,157,824
AS2152 California State University, Office of the Chancellor 2,083,584
AS4565 MegaPath Networks Inc. 1,797,632
AS5972 DoD Network Information Center 1,768,192
AS3479 Kennesaw State University 1,707,520
AS10695 Wal-Mart Stores, Inc. 1,704,448
AS27064 DoD Network Information Center 1,704,192
AS7385 Allstream Business US, LLC 1,688,064
AS18566 MegaPath Corporation 1,657,344
AS13335 Cloudflare, Inc. 1,569,024
AS22561 CenturyLink Communications, LLC 1,511,680
AS30036 Mediacom Communications Corp 1,509,376
AS210 Utah Education Network 1,494,272
AS18779 EGIHosting 1,414,400
AS158 Ericsson Network Systems, Inc. 1,391,872
AS3371 MCI 1,369,088
AS18676 Avaya Inc. 1,312,768
AS2686 AT&T Global Network Services, LLC 1,310,208
AS46606 Unified Layer 1,308,416
AS600 OARnet 1,300,992
AS11492 CABLE ONE, INC. 1,298,944
AS5006 Inteliquent, inc. 1,210,880
AS31898 Oracle Corporation 1,206,272
AS6079 RCN 1,191,680
AS6614 UNITED STATES CELLULAR TELEPHONE COMPANY (GREATER KNOXVILLE), L.P. 1,187,328
AS19527 Google LLC 1,179,904
AS4010 Headquarters, USAISC 1,177,600
AS22284 Bureau of Land Management Joint Pipeline Office 1,165,568
AS12083 WideOpenWest Finance LLC 1,163,520
AS6461 Zayo Bandwidth 1,157,376
AS109 Cisco Systems, Inc. 1,149,952
AS1226 California Technology Agency 1,104,128
AS7155 ViaSat,Inc. 1,081,856
AS7792 3M Company 1,075,712
AS4181 TDS TELECOM 1,064,192
AS46690 Southern New England Telephone Company and SNET America, Inc. 1,049,088
AS270 National Aeronautics and Space Administration 1,017,856
AS3491 PCCW Global, Inc. 1,005,568
AS1906 Northrop Grumman 998,400
AS20473 Choopa, LLC 978,688
AS14654 Wayport, LLC 975,104
AS26496 GoDaddy.com, LLC 935,680
AS297 National Aeronautics and Space Administration 933,376
AS386 Air Force Systems Networking 838,144
AS36375 University of Michigan 826,368
AS243 Harris Government Systems Sector 818,432
AS8103 Florida Department of Management Services - Division of Telecommunications 812,032
AS33588 Charter Communications 803,328
AS40676 Psychz Networks 800,768
AS33070 Rackspace Hosting 791,808
AS2572 University of Missouri - dba the Missouri Research and Education Network (MOREnet) 787,968
AS3354 University of Texas System 786,944
AS36352 ColoCrossing 784,640
AS2379 CenturyLink Communications, LLC 779,264
AS6621 Hughes Network Systems 775,168
AS14340 Salesforce.com, Inc. 766,976
AS6325 Illinois Century Network 760,064
AS7160 Oracle Corporation 759,040
AS27017 Ziply Fiber 747,520
AS46887 Lightower Fiber Networks I, LLC 722,944
AS11404 Wave Broadband 718,848
AS703 MCI Communications Services, Inc. d/b/a Verizon Business 718,592
AS18978 Enzu Inc 714,752
AS1540 Headquarters, USAISC 712,192
AS6181 Cincinnati Bell Telephone Company LLC 702,976
AS31822 City University of New York 676,096
AS2687 AT&T Global Network Services, LLC 668,160
AS72 Schlumberger Limited 667,904
AS11776 Atlantic Broadband Finance, LLC 667,648
AS6453 TATA COMMUNICATIONS (AMERICA) INC 665,088
AS4193 State of Washington 660,736
AS7726 FedEx Internet Technologies Corporation 657,920
AS3737 PenTeleData Inc. 657,408
AS87 Indiana University 655,616
AS3128 University of Wisconsin System 655,360
AS11232 Midcontinent Communications 653,824
AS10430 Washington State K-20 Telecommunications Network 647,680
AS14265 TPx Communications 637,184
AS13649 Flexential Colorado Corp. 632,064
AS395954 Leaseweb USA, Inc. 631,296
AS7046 MCI Communications Services, Inc. d/b/a Verizon Business 619,264
AS7015 Comcast Cable Communications, LLC 600,576
AS14977 State of Wyoming Department A&I 595,200
AS17184 CBEYOND COMMUNICATIONS, LLC 594,176
AS2897 Georgia Technology Authority 590,080
AS54600 PEG TECH INC 580,608
AS2381 WiscNet 567,040
AS33491 Comcast Cable Communications, LLC 554,240
AS33383 Hewlett-Packard Company 553,728
AS62904 Eonix Corporation 551,168
AS7011 Frontier Communications of America, Inc. 545,536
AS7065 Sonic.net, LLC 541,440
AS19994 Rackspace Hosting 533,248
AS3598 Microsoft Corporation 526,336
AS13325 State of Michigan, DMB-CNOC 524,544
AS17306 JAB Wireless, INC. 512,000
AS6939 Hurricane Electric LLC 501,248
AS8100 QuadraNet Enterprises LLC 499,200
AS63949 Linode, LLC 492,032
AS2386 AT&T Data Communications Services 488,704
AS21859 Zenlayer Inc 477,184
AS1541 Headquarters, USAISC 477,184
AS367 DoD Network Information Center 465,920
AS19957 AT&T Corp. 462,592
AS8 Rice University 460,544
AS40065 CNSERVERS LLC 460,288
AS33651 Comcast Cable Communications, LLC 452,096
AS3999 The Pennsylvania State University 443,648
AS8001 Net Access Corporation 436,736
AS19165 Webpass Inc. 435,712
AS35908 Krypt Technologies 435,200
AS1452 Headquarters, USAISC 427,008
AS17 Purdue University 426,240
AS4544 ConXioN Corporation 420,096
AS647 DoD Network Information Center 417,024
AS5056 Aureon Network Services 415,488
AS797 AT&T Services, Inc. 412,672
AS8070 Microsoft Corporation 411,648
AS10782 Hewlett-Packard Company 411,648
AS6559 State of NC - State Telecommunications Services 410,368
AS1503 Headquarters, USAISC 410,112
AS2711 Spirit Communications 405,248
AS3372 MCI 400,896
AS11663 State of Utah 399,616
AS17055 University of Utah 398,592
AS3136 State of WI Dept. of Administration 393,984
AS361 DoD Network Information Center 393,216
AS2688 AT&T Global Network Services, LLC 390,656
AS46375 Sonic Telecom LLC 390,144
AS6122 Iowa Communications Network 386,560
AS17054 CONTINENTAL BROADBAND PENNSYLVANIA, INC. 385,792
AS11022 Alabanza, Inc. 377,856
AS7381 SunGard Availability Services LP 377,344
AS1767 Indiana Higher Education Telecommunication System 376,832
AS10753 Level 3 Parent, LLC 370,432
AS1998 State of Minnesota 361,984
AS23089 Hotwire Communications 360,960
AS54489 CoreSpace, Inc. 353,280
AS7430 Hewlett-Packard Company 349,184
AS46261 QuickPacket, LLC 348,672
AS26577 BAE Systems Inc. 344,064
AS11686 Education Networks of America 339,456
AS747 Headquarters, USAISC 339,200
AS14638 Liberty Cablevision of Puerto Rico 337,664
AS3527 National Institutes of Health 336,640
AS11363 Fujitsu America Inc. 335,872
AS20055 Wholesail networks LLC 334,592
AS32190 CDK Global, LLC 332,288
AS52 University of California, Los Angeles 329,216
AS132 Air Force Systems Networking 329,216
AS6289 American Honda Motor Co., Inc. 328,960
AS3480 Kennesaw State University 328,704
AS59 University of Wisconsin Madison 328,448
AS29992 Department of Veterans Affairs 327,936
AS326 DoD Network Information Center 327,680
AS357 DoD Network Information Center 327,680
AS32 Stanford University 327,680
AS217 University of Minnesota 327,680
AS5778 CenturyLink Communications, LLC 321,280
AS18747 IFX Corporation 316,416
AS33650 Comcast Cable Communications, LLC 315,136
AS32475 SingleHop LLC 314,880
AS226 Los Nettos 314,112
AS21852 State Of Arkansas, Department of InformationSystems 313,088
AS27364 Armstrong 312,832
AS26810 U.S. Dept. of Health and Human Services 312,320
AS3064 Affinity Internet, Inc 310,016
AS7459 Grande Communications Networks, LLC 309,760
AS683 Argonne National Lab 305,920
AS54290 Hostwinds LLC. 303,360
AS18 University of Texas at Austin 299,520
AS7725 Comcast Cable Communications, LLC 299,264
AS1488 Headquarters, USAISC 299,264
AS13977 FAIRPOINT COMMUNICATIONS, INC. 297,472
AS3680 Novell, Inc. 297,216
AS73 University of Washington 297,216
AS27046 DoD Network Information Center 296,448
AS11714 Network Nebraska 294,656
AS557 University of Maine System 293,120
AS3475 Navy Network Information Center (NNIC) 289,280
AS23520 Columbus Networks USA, Inc. 289,024
AS7127 Southern California Edison 286,976
AS20021 HostMySite 284,672
AS26228 DataPipe, Inc. 280,576
AS8147 Ericsson Inc. 279,296
AS27357 Rackspace Hosting 277,760
AS8047 GENERAL COMMUNICATION, INC. 275,712
AS4185 AT&T Corp. 275,712
AS127 Jet Propulsion Laboratory 275,200
AS13536 First Light Fiber 274,944
AS54113 Fastly 273,920
AS4583 West Publishing Corporation 272,128
AS1970 Texas A&M University 271,616
AS122 UPMC 270,848
AS409 Air Force Systems Networking 269,312
AS2576 U. S. Department of Transportation 268,288
AS1843 National Aeronautics and Space Administration 267,264
AS36149 Hawaiian Telcom Services Company, Inc. 264,960
AS19113 Duke Energy Corporation 264,192
AS792 Oracle Corporation 264,192
AS291 ESnet 264,192
AS19902 Department of Administrative Services 263,424
AS68 Los Alamos National Laboratory 263,168
AS35913 DediPath 263,168
AS14041 University Corporation for Atmospheric Research 262,656
AS55 University of Pennsylvania 262,656
AS36384 Google LLC 262,656
AS292 ESnet 262,400
AS4454 State of Tennessee 262,400
AS299 University of California, Irvine 262,400
AS26662 XEROX CORPORATION 262,144
AS14298 Environmental Protection Agency 262,144
AS6039 DoD Network Information Center 261,120
AS531 Headquarters, USAISC 256,000
AS46573 LayerHost 255,744
AS22742 Connecticut Education Network 254,720
AS6360 University of Hawaii 254,464
AS5180 DoD Network Information Center 251,648
AS32244 Liquid Web, L.L.C 250,368
AS1464 Headquarters, USAISC 249,856
AS7270 IDT Corporation 248,320
AS637 DoD Network Information Center 241,408
AS13490 Buckeye Cablevision, Inc. 238,080
AS7979 Servers.com, Inc. 231,936
AS6527 Commonwealth of Massachusetts 230,400
AS6192 University of California at Davis 229,632
AS10405 Union Pacific Railroad Company 229,376
AS395139 NewYork-Presbyterian Hospital 229,376
AS11486 MCI Communications Services, Inc. d/b/a Verizon Business 228,096
AS3477 National Oceanic and Atmospheric Administration 222,208
AS16572 AT&T Mobility LLC 221,184
AS2048 State of Louisiana Office of Technology Services 220,160
AS32982 U.S. Department of Energy 219,648
AS4922 Shentel Communications, LLC 218,368
AS21769 Colocation America Corporation 217,088
AS16526 Birch Telecom, Inc. 216,576
AS22552 eSited Solutions 216,320
AS1742 Harvard University 215,808
AS26854 New York State 215,552
AS11488 BBN Technologies Corp. 214,528
AS1798 State of Oregon 214,528
AS1504 Headquarters, USAISC 214,272
AS38 University of Illinois 212,992
AS3464 Alabama Supercomputer Network 212,992
AS14506 Oracle Corporation 212,992
AS246 Air Force Systems Networking 212,480
AS29802 HIVELOCITY, Inc. 211,968
AS36092 Centene Corporation 210,944
AS2055 Louisiana State University 210,688
AS1467 Headquarters, USAISC 210,176
AS7896 University of Nebraska-Lincoln 209,152
AS23148 MCI Communications Services, Inc. d/b/a Verizon Business 209,152
AS14 Columbia University 208,896
AS21976 NJEDge.Net, Inc. 208,640
AS33652 Comcast Cable Communications, LLC 206,592
AS10846 Deere & Company 205,824
AS22351 INTELSAT GLOBAL SERVICE CORPORATION 205,056
AS1479 Headquarters, USAISC 204,800
AS5669 Interoute USA Inc. 204,288
AS36850 University of North Carolina at Chapel Hill 203,264
AS11272 C Spire Fiber 203,264
AS138 DoD Network Information Center 202,752
AS6431 ATT LABS 202,240
AS16504 Granite Telecommunications LLC 202,240
AS18756 Level 3 Parent, LLC 202,240
AS23005 SWITCH, LTD 201,984
AS25 University of California at Berkeley 201,984
AS30449 State of Arizona 201,472
AS396349 Five College Net, LLC 201,472
AS1637 Headquarters, USAISC 201,216
AS62729 A Small Orange LLC 201,216
AS523 Headquarters, USAISC 200,704
AS1477 Headquarters, USAISC 200,704
AS1506 Headquarters, USAISC 200,704
AS111 Boston University 199,168
AS91 Rensselaer Polytechnic Institute 198,912
AS13541 Mentor Graphics Corporation 198,656
AS1494 Headquarters, USAISC 198,656
AS1600 DoD Network Information Center 198,656
AS18819 Entergy Corporation 198,656
AS159 The Ohio State University 198,400
AS1602 Headquarters, USAISC 198,400
AS11719 Eaton Corporation 198,400
AS36291 Sanofi 198,144
AS2013 PG&E 198,144
AS225 University of Virginia 198,144
AS36647 Oath Holdings Inc. 197,888
AS11442 North Carolina State University 197,632
AS4130 University of Pittsburgh 197,632
AS1999 U.S. House of Representatives 197,376
AS2637 Georgia Institute of Technology 197,376
AS6071 Unisys Corporation 197,376
AS11188 LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION 197,376
AS26 Cornell University 197,376
AS13445 Cisco Webex LLC 197,120
AS2553 Florida State University 196,864
AS40831 Partners HealthCare System Inc. 196,608
AS3389 Ford Motor Company 196,608
AS5653 University of California San Francisco 196,608
AS340 DoD Network Information Center 196,608
AS22390 XEROX CORPORATION 196,608
AS22252 The City of New York 196,608
AS3778 Temple University 196,096
AS396982 Google LLC 194,304
AS8030 AT&T WorldNet 193,792
AS23352 Server Central Network 193,536
AS33490 Comcast Cable Communications, LLC 191,488
AS6591 Intergraph Corporation 188,416
AS7859 pair Networks 188,416
AS7203 Leaseweb USA, Inc. 186,112
AS1491 Headquarters, USAISC 184,832
AS32098 Transtelco Inc 180,224
AS23473 PAVLOV MEDIA INC 178,688
AS3593 Frontier Communications of America, Inc. 177,152
AS26347 New Dream Network, LLC 176,128
AS1489 Headquarters, USAISC 175,616
AS12129 123.Net, Inc. 175,616
AS14230 Involta 175,616
AS45 Lawrence Livermore National Laboratory 175,360
AS3701 Network for Education and Research in Oregon (NERO) 174,848
AS206 Computer Sciences Corporation 174,848
AS6035 DoD Network Information Center 174,336
AS33659 Comcast Cable Communications, LLC 173,824
AS2900 Arizona Tri University Network 173,056
AS20214 Comcast Cable Communications, LLC 172,544
AS4192 Oracle Corporation 171,520
AS4983 Intel Corporation 169,984
AS2749 Navy Network Information Center (NNIC) 169,984
AS11398 CenturyLink Communications, LLC 169,472
AS14615 Comporium, Inc 169,472
AS7795 LUMOS Networks, Inc. 168,960
AS14992 Newtek Technology Solutions, Inc 168,704
AS19969 Joe's Datacenter, LLC 168,704
AS7393 CYBERCON, INC. 167,936
AS19773 Motorola, Inc. 167,936
AS7016 Comcast Cable Communications, LLC 166,912
AS7321 LocalNet Corporation 166,656
AS7349 TierPoint, LLC 165,632
AS36590 Emerson Electric Co. 165,120
AS10921 Commonwealth of KentuckyDepartment of Information Systems 164,352
AS2495 Kansas Research and Education Network 164,096
AS3851 Nevada System of Higher Education 163,840
AS1968 University of Massachusettes 163,840
AS12079 Cellco Partnership DBA Verizon Wireless 163,840
AS10967 The Home Depot 163,840
AS26101 Oath Holdings Inc. 163,840
AS2044 Infinity Internet, Inc. 163,584
AS26658 HT 163,328
AS6130 American Internet Services, LLC. 163,072
AS35994 Akamai Technologies, Inc. 162,304
AS7782 Alaska Communications Systems Group, Inc. 162,048
AS5078 Oklahoma Network for Education Enrichment and 161,536
AS20278 Nexeon Technologies, Inc. 161,536
AS13645 BroadbandONE, LLC 161,024
AS2906 Netflix Streaming Services Inc. 160,768
AS10838 Charter Communications Inc 160,512
AS19397 ACN 160,256
AS33667 Comcast Cable Communications, LLC 159,232
AS33660 Comcast Cable Communications, LLC 158,720
AS18885 M2ngage Telecommunications II Corp. 157,696
AS30361 Swiftwill, Inc. 155,904
AS6099 Alameda County Office of Education 155,648
AS3663 NetNet 155,648
AS19551 Incapsula Inc 155,648
AS14051 Consolidated Communications, Inc. 155,392
AS22616 ZSCALER, INC. 155,136
AS5742 Consolidated Communications, Inc. 154,624
AS195 San Diego Supercomputer Center 153,856
AS14551 MCI Communications Services, Inc. d/b/a Verizon Business 152,832
AS30496 TierPoint, LLC 151,808
AS665 DoD Network Information Center 151,808
AS11377 SendGrid, Inc. 151,040
AS11215 Logix 150,272
AS103 Northwestern University 150,016
AS1706 University of Arizona 150,016
AS1498 Headquarters, USAISC 148,992
AS10599 McKesson Corp. 148,736
AS6041 DoD Network Information Center 148,736
AS19956 AT&T Corp. 147,968
AS1312 Virginia Polytechnic Institute and State Univ. 147,712
AS13371 Duke University 147,712
AS10879 Unitedhealthcare 147,200
AS46844 Sharktech 145,664
AS62 CyrusOne LLC 145,408
AS5050 Pittsburgh Supercomputing Center 144,640
AS46562 Performive LLC 144,384
AS33084 DC-Net 144,384
AS32934 Facebook, Inc. 143,872
AS13367 Comcast Cable Communications, LLC 143,872
AS399 Air Force Systems Networking 143,872
AS1462 Headquarters, USAISC 143,872
AS16399 First Communications LLC 143,872
AS3734 Santa Clara County Office of Education 143,104
AS20454 SECURED SERVERS LLC 142,848
AS3614 Dell, Inc. 142,592
AS3456 Charter Communications Inc 142,336
AS14492 DataPipe, Inc. 142,336
AS14398 Autodesk, Inc. 141,824
AS27 University of Maryland 141,824
AS1482 Headquarters, USAISC 140,800
AS32440 Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI) 140,032
AS11757 Whirlpool Corporation 140,032
AS1505 Headquarters, USAISC 140,032
AS2920 Los Angeles County Office of Education 140,032
AS22 Navy Network Information Center (NNIC) 139,520
AS675 Minnesota State Colleges and Universities 139,264
AS18933 UNITED STATES CELLULAR TELEPHONE COMPANY (GREATER KNOXVILLE), L.P. 139,264
AS1252 University of Nebraska Medical Center 139,008
AS13333 Consolidated Communications, Inc. 138,752
AS6059 University of Maryland 138,496
AS26934 University of Missouri-Columbia 138,496
AS14361 HopOne Internet Corporation 138,240
AS383 Air Force Systems Networking 137,984
AS5691 The MITRE Corporation 137,984
AS16983 Conduent Business Services, LLC 137,984
AS12042 Consolidated Communications, Inc. 137,472
AS88 Princeton University 137,472
AS377 Sandia National Laboratories 136,960
AS5647 Eastman Kodak Company 136,448
AS1341 Rockwell Collins, Inc. 136,448
AS13886 Cloud South 136,192
AS3900 YHC Corporation 135,680
AS3949 NTT America, Inc. 135,680
AS23162 University of Kentucky 135,424
AS22646 Hargray Communications Group, Inc. 135,424
AS1468 Headquarters, USAISC 135,424
AS1474 Headquarters, USAISC 135,168
AS53755 Input Output Flood LLC 135,168
AS5774 United States Postal Service. 135,168
AS1500 Headquarters, USAISC 135,168
AS19 Leidos, Inc. 135,168
AS20248 Take 2 Hosting, Inc. 135,168
AS12025 Iron Mountain Data Center 134,912
AS26554 US Signal Company, L.L.C. 134,912
AS188 SAIC 134,912
AS33668 Comcast Cable Communications, LLC 134,656
AS9 Carnegie Mellon University 134,656
AS5723 Johns Hopkins University 134,656
AS11273 FIRST DATA CORPORATION 134,656
AS27066 DoD Network Information Center 134,400
AS29791 Internap Holding LLC 134,144
AS10497 The World Bank Group 134,144
AS3724 State of Alaska 133,888
AS47 University of Southern California 133,888
AS427 Air Force Systems Networking 133,632
AS33438 Highwinds Network Group, Inc. 133,632
AS50 Oak Ridge National Laboratory 133,632
AS6 Bull HN Information Systems Inc. 133,376
AS14365 Adobe Systems Inc. 133,376
AS3512 Emory University 133,376
AS1580 DoD Network Information Center 133,376
AS11995 Oregon Health & Science University 133,120
AS15227 LUMOS Networks, Inc. 133,120
AS89 Navy Network Information Center (NNIC) 133,120
AS3582 University of Oregon 133,120
AS1778 DoD Network Information Center 132,864
AS14381 Caterpillar, Inc. 132,864
AS5719 SUNY at Stony Brook 132,864
AS293 ESnet 132,608
AS3562 Sandia National Laboratories 132,352
AS11857 Aegon USA, Inc. 132,352
AS31 California Institute of Technology 132,352
AS13 Headquarters, USAISC 132,352
AS6356 Northeast Regional Data Center 132,352
AS3955 Compucom Systems 132,352
AS20337 SUNY Institute of Technology 132,352
AS10343 National Aeronautics and Space Administration 132,096
AS14987 Rethem Hosting LLC 132,096
AS131 University of California, Santa Barbara 132,096
AS1556 DoD Network Information Center 132,096
AS46 Rutgers University 132,096
AS36081 State of Colorado General Government Computer 131,840
AS22093 Cleveland Clinic Foundation 131,840
AS29 Yale University 131,840
AS11834 Drexel University 131,840
AS2642 State of California 131,840
AS5739 University of California, Santa Cruz 131,584
AS11596 Best Buy Co., Inc. 131,584
AS1254 National Aeronautics and Space Administration 131,584
AS13576 SOUTH DAKOTA NETWORK 131,584
AS10370 Northwest Airlines 131,584
AS2025 University of Toledo 131,584
AS156 Northeastern University 131,584
AS16989 The University of Tennessee, Memphis 131,328
AS3676 University of Iowa 131,328
AS16831 Fujitsu Network Communications, Inc. 131,328
AS1563 DoD Network Information Center 131,328
AS6106 University of California, Riverside 131,328
AS20478 General Mills 131,328
AS11078 Brown University 131,328
AS13695 American Electirc Power Co. 131,328
AS20426 PriceWaterhouseCoopers, LLP 131,328
AS6200 University of Illinois at Chicago 131,328
AS33442 Zebra Technologies 131,328
AS1530 Headquarters, USAISC 131,072
AS362 DoD Network Information Center 131,072
AS3452 University of Alabama at Birmingham 131,072
AS10995 PNC Bank N.A. 131,072
AS4190 Binghamton University 131,072
AS23193 Community College of Allegheny County 131,072
AS365 DoD Network Information Center 131,072
AS10702 Idaho National Laboratory 131,072
AS11975 The College of William and Mary 131,072
AS11039 The George Washington University 131,072
AS1649 Headquarters, USAISC 131,072
AS10384 Tennessee Valley Authority 131,072
AS11577 Vermont Department of Information and Innovation 131,072
AS351 DoD Network Information Center 131,072
AS347 DoD Network Information Center 131,072
AS16 Lawrence Berkeley National Laboratory 131,072
AS341 DoD Network Information Center 131,072
AS6966 U.S. Department of State 131,072
AS688 Department of Interior 131,072
AS10273 Florida Power & Light Company 131,072
AS3794 Texas A&M University 131,072
AS13636 NEC Laboratories America, Inc. 131,072
AS3743 ARCELORMITTAL USA INC. 131,072
AS1701 National Aeronautics and Space Administration 131,072
AS2024 Eversource Energy 131,072
AS7925 West Virginia Network for Educational Telecomputing 131,072
AS13809 University of Arkansas for Medical Sciences 131,072
AS11872 Syracuse University 131,072
AS14017 Burlington Northern Sante Fe Railway Corp 131,072
AS16519 University of Colorado Denver 131,072
AS18722 SUPERVALU, Inc. 131,072
AS32480 Loma Linda University Medical Center 131,072
AS5707 The University of Texas Health Science Center at Houston 131,072
AS1483 Headquarters, USAISC 131,072
AS356 DoD Network Information Center 131,072
AS1832 Southern Methodist University 131,072
AS331 DoD Network Information Center 131,072
AS395959 XEROX CORPORATION 131,072
AS48 Navy Network Information Center (NNIC) 131,072
AS16988 International Paper 131,072
AS3134 U.S. Agency for International Development 131,072
AS32748 Steadfast 129,792
AS4323 tw telecom holdings, inc. 129,792
AS26827 EPB Fiber Optics 128,768
AS21565 Horry Telephone Cooperative, Inc. 128,256
AS22822 Limelight Networks, Inc. 127,744
AS62468 VpsQuan L.L.C. 126,976
AS25899 LS Networks 126,976
AS2648 National Oceanic and Atmospheric Administration 126,208
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AS627 DoD Network Information Center 72,448
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AS1463 Headquarters, USAISC 71,168
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AS4373 Online Computer Library Center 70,912
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AS7960 California Polytechnic State University 70,400
AS5080 Aramco 70,144
AS20077 IPNetZone 70,144
AS1555 DoD Network Information Center 70,144
AS27370 City of Boston 70,144
AS252 Headquarters, USAISC 70,144
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AS83 Headquarters, USAISC 69,632
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AS25691 Connecticut State University System 69,632
AS7849 CROCKER COMMUNICATIONS 69,632
AS1472 Headquarters, USAISC 69,632
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AS12005 University of South Carolina 67,584
AS1515 Headquarters, USAISC 67,584
AS10441 CH2M HILL 67,584
AS7872 United States Antarctic Program 67,584
AS77 Johns Hopkins University Applied Physics Laboratory 67,584
AS344 DoD Network Information Center 67,584
AS10326 Worcester Polytechnic Institute 67,584
AS10968 Cargill Incorporated 67,584
AS37 Navy Network Information Center (NNIC) 67,584
AS7743 JPMorgan Chase & Co. 67,584
AS11309 International Monetary Fund 67,584
AS63 Massachusetts Institute of Technology 67,584
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AS85 The Aerospace Corporation 67,072
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AS33348 Pierce County 66,816
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AS5766 Indian Health Service 66,816
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AS13462 Institute of Electrical and Electronics Engineers 66,816
AS22847 Bowdoin College 66,816
AS2902 University of Wyoming 66,816
AS29946 Union Wireless 66,816
AS7838 USAA 66,816
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AS3152 Fermi National Accelerator Laboratory (Fermilab) 66,816
AS2641 The Scripps Research Institute 66,816
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AS40246 New Mexico State University 66,560
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AS11520 Allstate Insurance Company 66,304
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AS32666 Case Western Reserve University 66,304
AS30013 Pixar 66,304
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AS21704 New York City Board of Education 66,304
AS14822 Memorial Sloan-Kettering Cancer Center 66,304
AS30 SRI International 66,304
AS19184 University of Wisconsin - Eau Claire 66,048
AS3592 Trinity College 66,048
AS1562 DoD Network Information Center 66,048
AS22328 Cedars-Sinai Health Systems 66,048
AS32996 AgriBank, FCB 66,048
AS25853 Ellijay Telephone Company 66,048
AS321 DoD Network Information Center 66,048
AS27402 Independence Blue Cross 66,048
AS22238 Defense Advanced Research Projects Agency(DARPA) 66,048
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AS398655 California University of Pennsylvania 66,048
AS29842 East Tennessee State University 66,048
AS1535 Headquarters, USAISC 66,048
AS78 BT Americas, Inc 66,048
AS329 DoD Network Information Center 66,048
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AS26649 General Dynamics Corporation, Land Systems Division 66,048
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AS26335 Middle Tennessee State University 66,048
AS11094 Rutgers University 66,048
AS7276 University of Houston 66,048
AS102 National Science Foundation 66,048
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AS6569 Nationwide Services, Inc 66,048
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AS7050 University of Wisconsin - Milwaukee 66,048
AS1256 Massachusetts Education Computer Network 66,048
AS20452 BALL STATE UNIVERSITY 66,048
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AS1206 Pittsburgh Supercomputing Center 66,048
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AS10583 Connecticut Hospital Assoc. 66,048
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AS334 DoD Network Information Center 66,048
AS6481 Southwest Research Institute 66,048
AS31967 Florida Institute of Technology 66,048
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AS589 University of North Texas 66,048
AS7973 Mayo Foundation for Medical Education and Research 66,048
AS398813 Millersville University of Pennsylvania 66,048
AS166 Institute for Defense Analyses 66,048
AS18564 St. John's University, New York 66,048
AS1528 Headquarters, USAISC 66,048
AS25640 Hawaii Department of Education 66,048
AS32601 Abilene Christian University 65,792
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AS30629 Lewis & Clark College 65,792
AS29885 Univeristy of Chicago Hospitals & Health System 65,792
AS3446 State of Kansas 65,792
AS21943 International Textile Group, Inc. 65,792
AS337 DoD Network Information Center 65,792
AS23171 Manhattan College 65,792
AS36691 Colorado State University-Pueblo 65,792
AS22693 Albany Schoharie Schenectady BOCES 65,792
AS18697 GREEN MOUNTAIN POWER CORPORATION 65,792
AS32818 Cleveland State University Computer Services 65,792
AS18791 Texas Christian University 65,792
AS1524 Headquarters, USAISC 65,792
AS19999 Union College 65,792
AS40238 Jostens 65,792
AS14319 Furman University 65,792
AS36704 Colorado School of Mines 65,792
AS2384 Architect of the Capitol 65,792
AS14223 New York State Department of Health 65,792
AS32064 American University 65,792
AS2544 King County Gov 65,792
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AS13354 zColo 65,792
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AS53280 The Toledo Hospital 65,792
AS33022 Wellesley College 65,792
AS1458 Headquarters, USAISC 65,792
AS54363 Baker Hughes Incorporated 65,792
AS30641 STATE OF DELAWARE 65,792
AS11286 KeyBank National Association 65,792
AS5738 First Light Fiber 65,792
AS396312 Richmond Memorial Hospital 65,792
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AS36427 Vassar College 65,792
AS7800 Allina Health System, Inc. 65,792
AS6482 SuperMedia LLC 65,792
AS6366 Portland State University 65,792
AS33401 Central Piedmont Community College 65,792
AS1559 DoD Network Information Center 65,792
AS33527 Metropolitan Government of Nashville and Davidson County Tennessee 65,792
AS6377 Eugene School District 4J 65,792
AS11916 UNDP 65,792
AS22809 American Family Insurance 65,792
AS15173 Newmarket Corporation 65,792
AS29984 Willamette University 65,792
AS34 University of Delaware 65,792
AS49 US National Institute of Standards & Technology 65,792
AS46483 Rochester General Hospital 65,792
AS3671 SLAC National Accelerator Laboratory 65,792
AS46832 University of Missouri - dba the Missouri Research and Education Network (MOREnet) 65,792
AS18880 Lam Research Corporation 65,792
AS11773 The University Of Texas M.D. Anderson Cancer Center 65,792
AS5831 DoD Network Information Center 65,792
AS7773 South Dakota State Government 65,792
AS27026 networkMaryland 65,792
AS11685 Huntington National Bank 65,792
AS4201 Oregon State University 65,792
AS14241 Oakland Schools 65,792
AS1466 Headquarters, USAISC 65,792
AS14351 Southwestern University 65,792
AS4385 Rochester Institute of Technology 65,792
AS11540 Research Triangle Institute 65,792
AS11529 National Grid 65,792
AS11482 Canisius College 65,792
AS22488 Cengage Learning Inc 65,792
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AS6066 MCI Communications Services, Inc. d/b/a Verizon Business 65,792
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AS355 DoD Network Information Center 65,536
AS46564 Nordstrom, Inc. 65,536
AS11534 School District of Philadelphia 65,536
AS353 DoD Network Information Center 65,536
AS26488 Santa Clara University 65,536
AS6112 Auburn University 65,536
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AS54965 Polytechnic Institute of NYU 65,536
AS32895 Milliken & Company 65,536
AS13429 Medical University of South Carolina 65,536
AS17324 Yeshiva University 65,536
AS3482 State of Montana 65,536
AS349 DoD Network Information Center 65,536
AS6009 DoD Network Information Center 65,536
AS10294 Coast Community College District 65,536
AS348 DoD Network Information Center 65,536
AS7968 Loyola University Chicago 65,536
AS54680 Hewlett-Packard Company 65,536
AS13376 Toppan Merrill LLC 65,536
AS8036 University of Tulsa 65,536
AS54624 Ellucian Company LP 65,536
AS393296 Augustana College 65,536
AS11348 Missouri University of Science and Technology 65,536
AS346 DoD Network Information Center 65,536
AS11971 Pfizer Inc. 65,536
AS14486 Occidental College 65,536
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AS13327 Eastern Kentucky University 65,536
AS13326 Tufts University 65,536
AS343 DoD Network Information Center 65,536
AS4211 Maricopa County Government 65,536
AS11318 Georgetown University 65,536
AS5656 accessU.S./BASENet 65,536
AS20085 The University of Akron 65,536
AS6628 Portland Public Schools 65,536
AS63319 Fairleigh Dickinson University 65,536
AS22315 San Bernardino County Superintendent of Schools 65,536
AS325 DoD Network Information Center 65,536
AS1265 Saint Mary's College 65,536
AS22323 University of California, Merced 65,536
AS352 DoD Network Information Center 65,536
AS11282 SERVERYOU INC 65,536
AS54257 Vermont State Colleges 65,536
AS10755 Dartmouth College 65,536
AS335 DoD Network Information Center 65,536
AS70 National Library of Medicine 65,536
AS7386 Illinois State University 65,536
AS53352 Henry Ford Health System 65,536
AS30051 Santa Clara County 65,536
AS54177 St. John Fisher College 65,536
AS19933 Buffalo State College 65,536
AS5376 DoD Network Information Center 65,536
AS33703 Hofstra University 65,536
AS12226 CIBC World Markets 65,536
AS22226 San Francisco Unified School District 65,536
AS22245 Wichita State University 65,536
AS11231 GETTYSBURG COLLEGE 65,536
AS53984 Wellstar Health System 65,536
AS55013 MTS Systems Corporation 65,536
AS395877 City of Tempe, Arizona 65,536
AS30499 Youngstown State University 65,536
AS10357 James Madison University 65,536
AS7328 The Children's Hospital of Philadelphia 65,536
AS64226 MDU Resources Group, Inc. 65,536
AS15337 Wm. Rainey Harper College 65,536
AS11205 City of Philadelphia 65,536
AS11214 University of North Florida 65,536
AS6341 Wisconsin Electric Power Company 65,536
AS6652 Pima Community College 65,536
AS11206 Ferris State University 65,536
AS26971 University of Texas 65,536
AS12173 The University of Alabama 65,536
AS784 Henry M. Jackson Foundation for The Advancement of Military Medicine 65,536
AS22174 State University of New York College ofTechnology at Alfred 65,536
AS11197 Dartmouth-Hitchcock Medical Center 65,536
AS22178 Senate of Pennsylvania 65,536
AS23122 Dakota State University 65,536
AS16677 AutoZone Inc 65,536
AS26557 Carleton College 65,536
AS33632 Morehead State University 65,536
AS8158 LGS Innovations, LLC 65,536
AS62676 University of Michigan - Dearborn 65,536
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AS53695 Southern Illinois University at Edwardsville 65,536
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AS336 DoD Network Information Center 65,536
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AS319 DoD Network Information Center 65,536
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AS564 DoD Network Information Center 17,664
AS11406 CIGNA 17,408
AS40627 RingCentral Inc 17,408
AS20134 Mediatti Broadband Communications, LLC 17,408
AS11353 Education Service Center Region XI 17,408
AS13343 Charter Communications Inc 17,408
AS33734 Muscatine Power and Water 17,408
AS39948 Phoenix Internet 17,408
AS2639 ZOHO 17,408
AS5783 Kern County Superintendent of Schools 17,408
AS398203 MidSouth Fiber 17,408
AS6534 Charter Communications Inc 17,408
AS27202 City of Bardstown, Kentucky 17,408
AS25712 Computer Services Inc 17,408
AS23481 Hill Country Telephone Cooperative, Inc. 17,408
AS14477 FINGER LAKES TECHNOLOGIES GROUP, INC. 17,408
AS18664 Velocity Technology Solutions, Inc 17,408
AS3745 NTT DATA Services Holdings Corporation 17,408
AS46595 Penasco Valley Telecommunications 17,152
AS4261 Intermart Inc. 17,152
AS33561 Lunavi, Inc. 17,152
AS30094 Giganews, Inc. 17,152
AS16710 Public Broadcasting Service 17,152
AS13438 Vivio Technologies 17,152
AS22549 PBX-Change 17,152
AS13337 e-vergent.com LLC 17,152
AS40410 FRIT 17,152
AS53907 Quality Technology Services, LLC 17,152
AS12054 Alameda County 17,152
AS11740 Progressive Casualty Insurance Companies 17,152
AS11736 University of South Dakota 17,152
AS13876 FiberLight, LLC 17,152
AS32869 Silver Star Telecom, LLC 17,152

Details

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

This page shows ASNs for United States. See the global ASN report for network, IP address information and whois details for other countries.